Hi Hans,
On Sun, Jul 17, 2011 at 23:30, Marek Szyprowski
<m.szyprowski@xxxxxxxxxxx> wrote:
> Hello,
>
> On Wednesday, July 13, 2011 11:39 AM Hans Verkuil wrote:
>
>> From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
>>
>> Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
>
> Acked-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
>
Acked-by: Pawel Osciak <pawel@xxxxxxxxxx>
I have to say, this is cool stuff!
Pawel
>> ---
>> drivers/media/video/videobuf2-core.c | 7 +++++--
>> 1 files changed, 5 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/media/video/videobuf2-core.c
>> b/drivers/media/video/videobuf2-core.c
>> index 3015e60..1892bb8 100644
>> --- a/drivers/media/video/videobuf2-core.c
>> +++ b/drivers/media/video/videobuf2-core.c
>> @@ -1365,6 +1365,7 @@ static int __vb2_cleanup_fileio(struct vb2_queue *q);
>> */
>> unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table
>> *wait)
>> {
>> + unsigned long req_events = poll_requested_events(wait);
>> unsigned long flags;
>> unsigned int ret;
>> struct vb2_buffer *vb = NULL;
>> @@ -1373,12 +1374,14 @@ unsigned int vb2_poll(struct vb2_queue *q, struct
>> file *file, poll_table *wait)
>> * Start file I/O emulator only if streaming API has not been used
>> yet.
>> */
>> if (q->num_buffers == 0 && q->fileio == NULL) {
>> - if (!V4L2_TYPE_IS_OUTPUT(q->type) && (q->io_modes & VB2_READ))
>> {
>> + if (!V4L2_TYPE_IS_OUTPUT(q->type) && (q->io_modes & VB2_READ)
>> &&
>> + (req_events & (POLLIN | POLLRDNORM))) {
>> ret = __vb2_init_fileio(q, 1);
>> if (ret)
>> return POLLERR;
>> }
>> - if (V4L2_TYPE_IS_OUTPUT(q->type) && (q->io_modes & VB2_WRITE))
>> {
>> + if (V4L2_TYPE_IS_OUTPUT(q->type) && (q->io_modes & VB2_WRITE)
>> &&
>> + (req_events & (POLLOUT | POLLWRNORM))) {
>> ret = __vb2_init_fileio(q, 0);
>> if (ret)
>> return POLLERR;
>> --
>
> Best regards
> --
> Marek Szyprowski
> Samsung Poland R&D Center
>
>
>
>
--
Best regards,
Pawel Osciak
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